Fermentation has a relatively low ATP yield compared to aerobic respiration because
A) more reducing equivalents are used for anaerobic catabolism.
B) less ATP is consumed during the first stage of aerobic catabolism.
C) oxidative phosphorylation yields a lot of ATP.
D) substrate-level phosphorylation yields a lot of ATP.
Answer: C
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A chronometer is used for:
a. measuring depth. b. measuring speed. c. measuring time. d. measuring latitude. e. measuring longitude.
Agricultural crops are being genetically engineered to be more tolerant of climate change. Which of the following describes a change that would help crops be more tolerant of climate change?
A. engineer crops that require extra water B. engineer crops that are less nutritious C. engineer crops to withstand extremely hot temperatures D. engineer crops to be intolerant of colder temperature ranges
How might global warming affect an animal species that has narrow temperature requirements?
A) It may cause the expansion of the species' range. B) It may cause the extinction of the species. C) It may reduce the diseases that threaten the species. D) It may have no effect on the species.
One mole of a substance contains 6.02 x 1023 molecules. The atomic number of Li is 3 and the atomic mass is approximately 7. If you have three moles of Li, how many grams does it weigh?
A. 21 B. 9 C. 7 x 6.02 x 1023 D. 3 x 6.02 x 1023